这是一个java的爬虫工具包jsoup的jar包，有自己修改过的代码，可以支持传输字符编码，原来的jar包在抓包时，传输字符编码是写死的(This is a Java crawler kit jsoup jar package, have their own modified code, can support the transmission of character encoding, the original jar packet in packet capture, transmission character encoding is coded)